6
Revision D November 2022
System Overview
The
QuadGuard
®
is a potentially reusable, re-directive, non-gating crash cushion for roadside
obstacles ranging in width from
24” to 126” (
610 mm
to 3200 mm). It consists of energy
-absorbing
cartridges surrounded by a framework of
Quad-Beam
Panels.
Important:
Valtir makes no recommendation whether use or reuse of any
part of the system is appropriate or acceptable following an impact. It is the
sole responsibility of the project engineer and/or the local highway authority
and its engineers to make that determination. It is critical that you inspect
this product after assembly is complete to make certain that the instructions
provided in this manual have been strictly followed.
The
QuadGuard
®
utilizes two types of cartridges in a staged configuration designed to address
both lighter cars and heavier, high center-of-gravity vehicles. Its modular design allows the system
length to be tailored to the design speed and appropriate number of Bays for a site (p. 39).
Impact Performance
The
6 Bay QuadGuard
®
systems have successfully passed the requirements stipulated in NCHRP
Report 350, Test Level 3 tests with both the light car and pickup at speeds of up to 62 mph
[100 km/h] at angles up to 20 degrees.
During head-on impact testing, within NCHRP Report 350 criteria, the
QuadGuard
®
is designed
to telescope rearward to absorb the energy of impact. When impacted from the side, within the
applicable NCHRP Report 350 criteria, it is designed to redirect the vehicle back toward its original
travel path and away from the roadside obstacle.
Warning:
Do NOT modify the QuadGuard
®
in any way
.
Warning:
Ensure that the QuadGuard
®
system and delineation used meet all
federal, state, specifying agency, appropriate Manual on Uniform Traffic Control
Devices (“MUTCD”), and local specifications.
Warning:
It is the responsibility of the installer to ensure that your assembly
procedure meets all appropriate Occupational Safety and Health Administration
(“OSHA”) and local standards.
Inspect Shipping
Before deploying the
QuadGuard
®
, check the received parts against the shipping list supplied
with the system. Make sure all parts have been received.
Important:
The Manufacturer’s Drawing Package supplied with the
QuadGuard
®
must be used with these instructions for proper assembly and should take
precedence over these general instructions.
